flyers waking up in places they do not want to be. they are grounded. not by weather,buttechnology. thethird largest airline still is not back on schedule this morning after a massive computer crash left thousands of passengers stranded. >> systems are down. i tried to check in online. the app isn't working. >> very frustrating. upsetting. not happy at all. >> reporter: the crash in computer system meant every ticket agent and gate agent saw their screens go dark. the same at the airline's operations center. no way to track bags, update schedules or flight plans. american had no choice. it stopped everything, grounding every plane. they were parked in chicago, miami and dallas. >> there's nothing you can do. you just have to stand in line and hope you can get on your flight. >> reporter: the cancellations started cascading before the day was over. nearly 800 flights never happened. embarrassed the ceo took to youtube to explain. >> unfortunately, in this case we had a software issue that impacted both our primary and backup systems. >> reporter: so all the airline could do was apo

. >> coming up, grab your binoculars when the sun comes up, so will a special pieceoftechnologyoverbay area landmarks. >> the battle against smoking take as new turn in new york and it could be harder for youn >> just a couple of hours from now a very special aircraft will circle the skies near the golden gate bridge and the sunlight powered solo impulse takes off from the field at 7:00 a.m. and will circle in a holding area west of the bridge for several hours and at 3:00 p.m., the solar impulse will make the first of several fly brings over the bridge at an at duty of 3,500' before landing at the airfield at 11:00 tonight with a total time of 16 hours in the air. may 1 it leaves the bay area for a cross country trip that winds up in new york. >> some school groups are planning to head out to see it. it is history in the making. >> very cool stuff. >> solo powered. >> plenty of solar power today. >> temperatures are still above average. look how much they drop compared to yesterday. three degrees in fremont, down to 82. 83 in san jose, four-degree drop and concord is 83. oakland drops

awirelesstechnologythatonly some stores can use. >> some apps only link with a few credit cards so you may need to link to a prepaid card which can incur additional fees. that may mean you don't have the best protection if you lose your phone or someone breaks in to your account. >> prepaid cards whether in your hand or on your phone have no guaranteed protection against unauthorized transaction sow could lose whatever balance is on the cards. >> if, like her, you like to leave the wallet at home security is best when it is linked with a credit card. >> report a lost phone or suspicious activity to the credit card company right away. of course, inform your cell phone carrier so they can disable the phone. >> still ahead at 6:30 we have breaking news from texas on the devastating explosion that flattened a fertilizer plant. >> we will go to texas for the latest on efforts to fine missing residents after the fiery blast. >> three men robbed this macy's while it was open. find out what they did next. >> a live look from sutro tower a high definition picture with temperatures today three t

-month-old grounding order. boeing has completed 20 test flights with thenewtechnology. it'sdreamliner fleet was grounded in mid-january after batteries caught fire on at least two jets. >>> it appears many american women chose to ignore a 2009 government recommendation against the wide use of mammograms. a study of nearly 28,000 women found that ma'amography rates actually rose slightly in women 40 do 49 years of age. between 2008 and 2011. you may recall in 2009 the u.s. preventative services task force recommended against routine mammogram breast screenings for women in that age range. several prominent professional and advocacy groups recommended that women do continue to receive the screenings. the study appears in the journal "cancer." coming you, the latest in the massachusetts manhunt. new details on the capture of the terror suspect as boston celebrates the end of a nightmare. and a milestone for alternative energy. there's a fleet of garbage trucks that run on gas. we've all. >> welcome back at 5:30 on this saturday morning. we are starting with a quick look at the weather. here's

in november when her leukemia relapsed. her students sprung into action. >>, you are going tousetechnologyhoweveryou can. >> they quickly created a facebook page and website and organized donor drives all over the world. southeastations are one of the small he was groups to don't nature bone marrow. >> one in over 20,000 people find a match. >> at this temple people swabbed and joined the donor list. in sunnyvale, abc7 news. >>> well, we have information on how you can register to be a bone marrow donor at abc7news.com. just look at "see it on tv." our meteorologist lisa argen is here to talk about really, i don't know what else to call it, a heat wave? no spare the air today, though. >> no. but it will be confined to the immediate coastline. anyone else around the bay will really be feeling the rapid warmup today. san francisco in the low 50s right now. going for a high of 69. of course, the giants win. we will talk about the rest of the bay area when we return. >> well, talking sports, the warriors battled denver to the end in game one of their playoff series. but a nuggets seasoned ve

relapsed. her students sprung into action. >>, you are going tousetechnologyhoweveryou can. >> they quickly created a facebook page and website and organized donor drives all over the world. southeast asians are one of the smallest groups to donate bone marrow. >> someone from south asia, one in over 20,000 people find a match. >> at this temple people swabbed and joined the donor list. in sunnyvale, abc7 news. >>> we have information on how you can register to be a bone marrow donor at abc7news.com. just look at "see it on tv." we wish the best for that woman. lisa argen is here to talk about the accuweather forecast that just shows us getting -- how's that? >> i like that. we are talking mid-80s in parts of the south bay, that's as much as 15 degrees above average. but we still have airport delays due to traffic delays at sfo. but nothing but sunshine in the city. air quality maybe getting a little hazy the next couple days as we build the heat. we will talk about that when we only back. >> also the warriors battle the nuggets to the end in game one of their playoff serie

relapsed. her students sprung into action. >> you are going tousetechnologyhoweveryou can. >> they quickly created a facebook page and website and organized donor drives all over the world. southeast asians are one of the smallest groups to donate bone marrow. >> someone from south asia, one in over 20,000 people find a match. >> at this temple people swabbed and joined the donor list. in sunnyvale, abc7 news. >>> we have information on how you can register to be a bone marrow donor at abc7news.com. just look at "see it on tv." >> right here right now ms. lisa argen to talk to you about the accuweather forecast. >> it's pretty nice out there right now. no clouds. maybe a beach day. even if you don't like the beach, it will be pleasant along the shoreline. sea breeze coming back in the afternoon. no worries there. but upper 80s inland east bay. we will talk about the rest of the bay and how long the warmth will last coming up. >> thank you, lisa. also ahead, the warriors, my warriors, battling the nuggets to the end in game one of the playoff series. but a >> welcome back.

determine your mood, are you happy or unhappy. >>thetechnologytakesonly days to accomplish what would have taken several months to do, just a few years ago. >> the warriors help to even the hey off with the series with the nuggets but they have to do it without their all-star forward out for th oe r the post-season with a torn right hip flexor with the injury on saturday when he took a nasty spill and landed on his help and tore the hip flexor. he led the league in the regular season with 56 games where he scored points and rebounds in double digits each so the warriors have to make up that harder to make up for the absence. >> i see the warrior fans cringing right now. >> giants fans are happy, great game, great sweep of the padres and more great weather for tonight. >> sweep the diamondbacks and kept rolling across your own divisional teams. that is what you need to do. outside, we will get to the forecast but it will be warm by at&t standards and calm. the specific numbers in a mili doppler 7 hdshs it is dry this morning. we will talk about whas going to happen, beautiful picture t

to help reunite lost friends and family members. still despite allthetechnologyinvolved,perhaps the greatest power of social media monday was the ability to remind everyone of what really matters. two of boston's most famous natives. ben affleck and mark wahlberg took to social media sites to express their thoughts. ben posted "such a senseless and tragic day. my family and i send our love to our beloved and resilient boston" and mark, "thoughts and prayers with my hometown boston." he was just here with you yesterday on the show. >> right, and who would have thought that the day would turn so tragic the way it did. and the power of social media brought us together and kept us connected. >> thank you, bianna. we appreciate it. >>> coming up more from boston. we will talk to the eyewitnesses just ten feet from the exp >>> and we are back here in boston, i am here with david able, "the boston globe." thank you for joining us, david. you were right on the finish line at the moment the first blast went off. tell us about what you saw. >> right. so i was there taking video as runners